Hi Kevin, We have found that network (Cat5) cables shorter than 2m (6.5 ft) causes network reflections that contribute to network instability in multi-unit XW systems. Do not rule out a bad or intermittent network cable either. Also, confirm the inverters have the same firmware and the latest. It is not necessary to have the controllers in-network, but it allows Enhanced Grid operation, which does a better job of keeping batteries full when selling. For off grid, they can be in a separate network if you want to monitor them with a dedicated SCP, but you will need to supply network power for Xanbus (AUX port can be used for this).
Rgds, _____________________________________________________________________________________ Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES | Technical Support Representative Phone: +(650) 351-8237 ext. 001# | Email: eric.bent...@schneider-electric.com | Site: www.schneider-electric.com/solar | Address: 250 South Vasco Rd., Livermore, CA 94551 *** Please consider the environment before printing this e-mail From: "Kevin Pegg" <kp...@energyalternatives.ca> To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> Date: 08/22/2013 10:18 AM Subject: [RE-wrenches] Xantrex XW system stability Sent by: re-wrenches-boun...@lists.re-wrenches.org Hello Wrenches, Curious how others are finding the stability of larger Xantrex XW deployments? We have an installation with 12 Xanbus devices (4 x XW6048, 6 x XW-MPPT60, 1 x AGS, 1 x SCP) and it keeps crashing. Power cycle the whole system and it's fine for a few weeks and then it crashes again. I find with smaller deployments under 5 Xanbus devices the stability is much better, but still get the occasional customer call with a system gone haywire and a power cycle fixes. This particular installation is in the high arctic darn near the north pole and sending a tech up there next week to resolve. Needless to say, it's an expensive ordeal to get up there. Kevin _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. ______________________________________________________________________
<<image/jpeg>>
_______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
